EP2016277B1 - Électrovanne à induit relié par liaison de matière - Google Patents

Électrovanne à induit relié par liaison de matière Download PDF

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Publication number
EP2016277B1
EP2016277B1 EP07726734A EP07726734A EP2016277B1 EP 2016277 B1 EP2016277 B1 EP 2016277B1 EP 07726734 A EP07726734 A EP 07726734A EP 07726734 A EP07726734 A EP 07726734A EP 2016277 B1 EP2016277 B1 EP 2016277B1
Authority
EP
European Patent Office
Prior art keywords
armature
switching element
hydraulic switching
circumference
bolt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP07726734A
Other languages
German (de)
English (en)
Other versions
EP2016277A1 (fr
Inventor
Nestor Rodriguez-Amaya
Matthias Schnell
Friedrich Boecking
Markus Rueckle
Philippe Allio
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2016277A1 publication Critical patent/EP2016277A1/fr
Application granted granted Critical
Publication of EP2016277B1 publication Critical patent/EP2016277B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0635—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/02—Fuel-injection apparatus having means for reducing wear
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/90—Selection of particular materials
    • F02M2200/9053—Metals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/004—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0043—Two-way valves

Definitions

  • DE 196 50 865 A1 refers to a solenoid valve whose magnet armature is designed in several parts and has an armature disk and an anchor bolt.
  • the anchor bolt is guided in a slider.
  • a damping device is provided on the armature. With such a device exactly the required short switching times of the solenoid valve can be maintained.
  • the solenoid valve is intended for use in injection systems with a high-pressure accumulator injection system (common rail).
  • the anchor plate is guided on the anchor bolt.
  • the armature plate is acted on the one hand by a return spring and on the other hand secured by a shim, which is inserted in a recess on the circumference of the anchor bolt.
  • An armature assembly is proposed in which an anchor plate is attached via a guide pin on the anchor bolt.
  • the guide pin is guided in a formed on the guide portion of the anchor plate on the anchor bolt elongated hole, so that the anchor plate with respect to the circumferential surface surface of the anchor bolt is added play.
  • WO 96/17166 A discloses an anchor produced by MIM (Metal Injection Molding) process.
  • Solenoid valves are used as actuators for cost and space reasons on high-pressure accumulator injection systems (common rail).
  • the magnetic circuit of a solenoid valve consists of a magnetic coil received within a magnetic core and an armature which is connected to the switching element to be moved. There are several possibilities for the connection between the armature and the switching element.
  • the anchor bolt of the anchor plate can be mounted over the already mentioned lock washer. Due to the inevitable play between the lock washer, a recess in the end face of the anchor plate and the recess made on the circumference of the anchor bolt for receiving the lock washer, there are adverse effects on the dynamics of the solenoid valve.
  • an armature plate belonging to the magnetic circuit of the magnetic valve by means of the MIM technique (Metal Injection Molding) between an anchor bolt or a switching element which directly releases or closes a pneumatic hydraulic connection.
  • MIM Metal Injection Molding
  • at least one recess in the form of a groove or groove are attached to the circumference of an anchor bolt, for example, or on the circumference of a hydraulic switching element in the region of the connection point with the anchor plate.
  • the recesses can be made in the region of the opening of the anchor plate, which are penetrated by the anchor bolt or by the hydraulic switching element, complementary to the outer geometry of the circumference of the anchor bolt or the hydraulic switching element.
  • the geometry on the outer peripheral surface of the anchor bolt or the hydraulic switching element can be easily manufactured in the output part with low tolerances.
  • the residual air gap required for solenoid valves can be adjusted in the MIM tool and is created during metal injection molding, i. H. during the injection of a melt of a metallic material, without the need for reworking such as regrinding to adjust the residual air gap at the face of the anchor plate when joined to the anchor bolt or hydraulic switching element via the MIM process.
  • the armature plate is formed as part of the magnetic circuit with respect to the end face, which is usually designed plan, the anchor bolt or the hydraulic switching element reset, so that a step between the end face of the anchor plate passing through the anchor bolt and the hydraulic switching element results, which defines the residual air gap between the end face of the armature plate opposite the magnetic core and the front of the armature plate opposite magnetic core.
  • the material of the anchor bolt or the hydraulic switching element can be optimally selected according to the wear point.
  • a magnetic material is preferably selected in order to apply high magnetic forces and to avoid eddy current losses.
  • openings or recesses can be formed in arbitrary geometry to reduce the mass and for flow optimization, which can be formed without reworking the anchor plate.
  • connection between the anchor bolt or a hydraulic switching element and the integrally formed armature plate absorbs the acceleration forces which occur when the hydraulic switching element or the anchor bolt engages with the closing element received upon impact with the seat.
  • the hydraulic switching element or the anchor bolt engages with the closing element received upon impact with the seat.
  • the use of the MIM method advantageously makes it possible to form a metallic component made of a metallic material on a component which is made of a different material, so that the individual components to be joined together take into account respectively optimized material properties matched to the application branch can be selected.
  • the representation according to FIG. 1 is a pressure balanced 2/2-valve refer, with a fuel injector is actuated and the armature assembly comprises an anchor plate and an anchor bolt or a hydraulic switching element and the anchor plate is integrally formed by means of a MIM connection to the anchor bolt.
  • a fuel injector 10 which is only partly shown here, has an injector body 12.
  • the fuel injector 10 includes a solenoid valve 14.
  • the solenoid valve 14 includes a magnet pot 16 in which a solenoid coil 22 is received.
  • the magnet pot 16 is traversed by a passage opening 18, which serves to receive a closing spring 20.
  • an armature assembly 24 which includes an anchor plate 26.
  • the anchor plate 26 may either be integrally formed on an anchor bolt or formed on a hydraulic switching element 28.
  • the attachment between the anchor plate 26 and the anchor bolt 28 and the hydraulic switching element 28 takes place by means of an MIM connection 30 (Metal-Injected Molding).
  • the anchor bolt 28 or the hydraulic switching element 28 of the armature assembly 24 is received in a bore 32 of the injector body 12.
  • the anchor plate 26 of the armature assembly 24 is connected to a hydraulic switching element 28
  • the lower end face of the hydraulic switching element 26 cooperate with a seat 36 formed in the injector body 12.
  • a hydraulic chamber 40 into which, for example, a pressure relief line 38 is provided for pressure relief of an injection valve of the fuel injector 10 actuated control chamber.
  • the anchor plate 26 which is integrally formed on the circumference of the anchor bolt 28 or a hydraulic switching element 28, attracted by the solenoid 22 and the seat 36 is opened at the lower end face of the anchor bolt 28 and the hydraulic switching element 28. This creates a pressure relief of the hydraulic chamber 40, so that a control amount via the discharge line 38, the hydraulic chamber 40 and the open seat 36 can flow into a low-pressure side return 34 of the injector 12.
  • Figure 2.1 can be removed that the anchor bolt 28 and the hydraulic switching element 28 has a circumference 52.
  • the armature disk 36 of the anchor hole 24 is formed on the periphery 52 of the anchor bolt 28 and the hydraulic switching element 28.
  • there is an outer contour 44 In the area in which the armature disk 36 of the anchor hole 24 is formed on the periphery 52 of the anchor bolt 28 and the hydraulic switching element 28, there is an outer contour 44.
  • a positive connection 46 is produced by the formation of the anchor plate 26 on the anchor bolt 28 or the hydraulic switching element 28 when forming the anchor plate 26.
  • the armature plate 26 of the armature assembly 24 is formed on the periphery 52 of the anchor bolt 28 and the hydraulic switching element 28, that between the end face 50 of the armature disk 26 and the end face of the anchor bolt 28 and the hydraulic switching element 28, a supernatant 48 results the residual air gap between the end face 50 of the armature disk 26 and the lower end face of the magnet coil 22 enclosed by the magnetic core 16 is defined.
  • the anchor plate 26 is formed by means of the MIM method to form a MIM connection 30 on the anchor bolt 28, wherein the Nachbearbeitungsaufwand takes a minimum.
  • armature assembly 24 is located between the end face 50 of the anchor plate 26 and the end face of the anchor bolt 28 and the hydraulic switching element 28, a projection 48, which in the assembled state of the armature assembly 24, the residual air gap between the end face 50 of the anchor plate 26 and the end face of Magnetic coil 22 enclosed by the magnetic pot 16 is defined.
  • Figure 2.3 shows a further embodiment of an MIM connection having armature assembly.
  • a collar 58 is embodied on the circumference 52 of the anchor bolt 28 or of the hydraulic shift element 28.
  • the raised above the circumference 52 of the anchor bolt 28 and the hydraulic switching element 28 projecting collar 58 forms during molding of the anchor plate 26 has a correspondingly configured recess on the inside of the armature plate 26.
  • the supernatant 48 is set between the end face of the anchor bolt 28 and the hydraulic switching element 28 and the end face 50 of the anchor plate 26 in the MIM tool so that in the formation of the anchor plate 26 on the anchor bolt 28 and the hydraulic Switching element 28 by corresponding axial arrangement of the collar 58, a residual air gap between the armature plate 26 and the magnetic coil 22 results.
  • FIG. 2.4 a variant embodiment of the invention proposed anchor assembly is shown in which at the periphery 52 of the anchor bolt 28 and the hydraulic switching element 28 at least one undercut 60 is executed.
  • the undercut 60 on the periphery 52 of the anchor bolt 28 and the hydraulic switching element 28 is in the molding of the anchor plate 26 by means of the MIM method of the material from which the anchor plate 26 is made, surrounded. It forms a positive connection 46 between the anchor plate 26 and the anchor bolt 28 or the hydraulic switching element 28, which also withstands high acceleration forces.
  • the in the Figures 2.1 to 2.4 illustrated embodiments of the armature assembly 24 are all characterized by an MIM connection 30 between the anchor plate 26 and the anchor bolt 28 and the hydraulic switching element 28.
  • the outer contour 44 of the circumference 52 of the anchor bolt 28 and the hydraulic switching element 28 can be easily made in the output part of the low demands on the tolerances.
  • the formation of the residual air gap is adjusted by appropriate dimensioning of the supernatant 48 between the end face 50 of the anchor plate 26 and the end face of the anchor bolt 28 and the hydraulic switching element 28 in the MIM tool and the MIM process, ie the injection or the introduction of a liquid metallic Material, produced during the manufacture of the MIM connection 30 during the molding of the anchor plate 26.
  • the armature plate 26 to be formed on the anchor bolt 28 or of the hydraulic shift element 28 is optimally selected with regard to the magnetic properties of the material.
  • to reduce the mass of the anchor plate 26 may be provided with through holes, through holes or recesses, on the one hand, a reduction in the mass of the anchor plate 26 achievable is and with which on the other hand, a flow of controlled from the control room tax amount can be optimized.
  • FIG. 3 shows the inventively proposed armature assembly on an outwardly opening valve (A-valve).
  • the fuel injector 10 includes in the injector 12, in which the solenoid valve 14 is received.
  • the armature assembly 24 as shown in FIG. 3 includes the anchor plate 26 which is positively connected via a MIM connection 30 with the anchor bolt 28 and the hydraulic switching element 28. At the periphery of the anchor bolt 28 and the hydraulic switching element 28, a seat surface is formed, which cooperates with the seat 36 of the injector 12.
  • the armature assembly 24 as shown in FIG. 3 opens when energizing the solenoid 22, which is enclosed by the magnetic pot 16, to the outside.
  • a circumferential taper 66 is formed on the circumference 52 of the anchor bolt 28 and the hydraulic switching element 28, in the region of the relief line 38 for pressure relief of a in FIG. 3 not shown, but formed in the injector 12 control chamber opens.
  • the seat 36 is opened when the magnet coil 22 is energized and the armature assembly 24 is moved upwards, the control volume flows via the relief line 38, the cavity formed by the circumferential taper 66 on the circumference of the anchor bolt 28 and the hydraulic switching element 28 and the opened seat 36, respectively low-pressure side return 34 from.
  • Another return over the guide leakage is located at the lower end of the bore 32 in the injector body 12, in which the anchor bolt 28 and the hydraulic switching element 28 is guided narrow tolerances.
  • FIG. 4 shows a further embodiment of the inventively proposed anchor assembly on a sleeve valve.
  • the representation according to FIG. 4 is the fuel injector 10 can be seen, which has a sleeve valve to relieve the pressure of a discharge line 38 of a control chamber in the injector 12.
  • the armature assembly 24 includes in this embodiment a valve sleeve 68 which is joined to the anchor plate 26 via an MIM connection 30. Within the valve sleeve 38 is acted upon by the closing spring 20 cylindrical valve body 70th added. About the closing spring 20 of the cylindrically shaped valve body 70 is acted upon.
  • the end face 50 of the armature plate 26 is tightened, so that the valve sleeve 68 lifts off from the seat 36 at the top of the injector body 12.
  • an orifice 74 of the discharge line 38 of the control chamber formed in the injector body 12 is depressurized, since a biting edge 76, which is formed on the lower end face of the valve sleeve 68, is lifted off the plan side of the injector body 12.
  • the discharge point 74 of the discharge channel 38 may, for example, in a dome-shaped elevation 72 on the plan side of the injector body 12 of the fuel injector 10 according to the embodiment in FIG. 4 lead.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Magnetically Actuated Valves (AREA)
  • Fuel-Injection Apparatus (AREA)

Claims (10)

  1. Procédé de fabrication d'un module d'induit (24) pour une électrovanne (14), qui comprend une bobine magnétique (22) pouvant être parcourue par un courant, comprenant les étapes de procédé suivantes :
    a) un contour extérieur (44 ; 54, 58, 60) est produit à la périphérie (52) d'un boulon d'induit (28) ou d'un élément de commutation hydraulique (28),
    b) dans la région du contour extérieur (44 ; 54, 58, 60) est réalisée une plaque d'induit (26), au cours du procédé MIM (Metal-Injected Molding, moulage par injection de métal).
  2. Procédé selon la revendication 1, caractérisé en ce que conformément à l'étape de procédé a), au moins une rainure (54) ou une gorge sont réalisées sur la périphérie (52) du boulon d'induit (28) ou de l'élément de commutation hydraulique (28).
  3. Procédé selon la revendication 1, caractérisé en ce que conformément à l'étape de procédé a), au moins un épaulement (58) ou une contre-dépouille (60) sont réalisées sur la périphérie (52) du boulon d'induit (28) ou de l'élément de commutation hydraulique (28).
  4. Procédé selon la revendication 1, caractérisé en ce que conformément à l'étape de procédé b), une connexion par engagement par correspondance géométrique est produite entre le matériau du disque d'induit (26) et le contour extérieur (44 ; 54, 58, 60) de la périphérie (52) du boulon d'induit (28) ou de l'élément de commutation hydraulique (28).
  5. Procédé selon la revendication 1, caractérisé en ce que conformément à l'étape de procédé b), un dépassement (48) définissant une fente d'air résiduelle est produit entre le côté frontal du boulon d'induit (28) ou de l'élément de commutation hydraulique (28) et un côté frontal (50) de la plaque d'induit (26).
  6. Procédé selon la revendication 1, caractérisé en ce que conformément à l'étape de procédé b), des ouvertures de passage ou des évidements sont produits dans le disque d'induit (26).
  7. Module d'induit (24) pour une électrovanne (14), comprenant une plaque d'induit (26) et un boulon d'induit (28) ou un élément de commutation hydraulique (28), caractérisé en ce que la plaque d'induit (26) est façonnée dans la région d'un contour extérieur (44 ; 54, 58, 60) à la périphérie (52) du boulon d'induit (28) ou de l'élément de commutation hydraulique (28) au cours du procédé MIM.
  8. Module d'induit (24) selon la revendication 7, caractérisé en ce que la périphérie (52) du boulon d'induit (28) ou de l'élément de commutation hydraulique (28) présente au moins une gorge ou au moins un renfoncement (54) en forme de rainure.
  9. Module d'induit (24) selon la revendication 7, caractérisé en ce qu'au moins un rehaussement (58, 60) saillant au-dessus de la périphérie (52) est réalisé sur la périphérie (52) du boulon d'induit (28) ou de l'élément de commutation hydraulique (28).
  10. Module d'induit (24) selon la revendication 7, caractérisé en ce que la plaque d'induit (26) est fabriquée en un matériau magnétique et le boulon d'induit (28) ou l'élément de commutation hydraulique (28) est fabriqué en un matériau optimisé en termes d'usure.
EP07726734A 2006-05-04 2007-03-09 Électrovanne à induit relié par liaison de matière Not-in-force EP2016277B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006020689A DE102006020689A1 (de) 2006-05-04 2006-05-04 Magnetventil mit stoffschlüssiger Ankerverbindung
PCT/EP2007/052211 WO2007128605A1 (fr) 2006-05-04 2007-03-09 Électrovanne à induit relié par liaison de matière

Publications (2)

Publication Number Publication Date
EP2016277A1 EP2016277A1 (fr) 2009-01-21
EP2016277B1 true EP2016277B1 (fr) 2009-10-07

Family

ID=38197996

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07726734A Not-in-force EP2016277B1 (fr) 2006-05-04 2007-03-09 Électrovanne à induit relié par liaison de matière

Country Status (6)

Country Link
EP (1) EP2016277B1 (fr)
JP (1) JP5748405B2 (fr)
CN (1) CN101438050B (fr)
AT (1) ATE445097T1 (fr)
DE (2) DE102006020689A1 (fr)
WO (1) WO2007128605A1 (fr)

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DE102008001122A1 (de) * 2008-04-10 2009-10-15 Robert Bosch Gmbh Magnetventil ohne Restluftspaltscheibe
US8083206B2 (en) 2008-07-08 2011-12-27 Caterpillar Inc. Precision ground armature assembly for solenoid actuator and fuel injector using same
DE102009007675A1 (de) * 2009-02-05 2010-08-19 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Ventilbefestigung
AT508049B1 (de) * 2009-03-17 2016-01-15 Bosch Gmbh Robert Vorrichtung zum einspritzen von kraftstoff in den brennraum einer brennkraftmaschine
DE102009060028A1 (de) * 2009-12-21 2011-06-22 Robert Bosch GmbH, 70469 Magnetventil
DE102010002845A1 (de) * 2010-03-15 2011-09-15 Robert Bosch Gmbh Kraftstoff-Injektor
DE102012204302A1 (de) * 2012-03-19 2013-09-19 Robert Bosch Gmbh Umspritztes Bauelement mit einem Dichtlabyrinth
CN107829837A (zh) * 2017-10-30 2018-03-23 龙口龙泵燃油喷射有限公司 一种高压共轨喷油器用的燃油喷射电控制机构

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Also Published As

Publication number Publication date
ATE445097T1 (de) 2009-10-15
WO2007128605A1 (fr) 2007-11-15
JP5748405B2 (ja) 2015-07-15
DE102006020689A1 (de) 2007-11-08
CN101438050A (zh) 2009-05-20
JP2009535585A (ja) 2009-10-01
CN101438050B (zh) 2011-06-08
EP2016277A1 (fr) 2009-01-21
DE502007001689D1 (de) 2009-11-19

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